1200401101 has 8 divisors (see below), whose sum is σ = 1234182240. Its totient is φ = 1166690448.

The previous prime is 1200401099. The next prime is 1200401113. The reversal of 1200401101 is 1011040021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200401101 - 2¹ = 1200401099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200401131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17910 + ... + 52168.

It is an arithmetic number, because the mean of its divisors is an integer number (154272780).

Almost surely, 2^1200401101 is an apocalyptic number.

It is an amenable number.

1200401101 is a deficient number, since it is larger than the sum of its proper divisors (33781139).

1200401101 is an equidigital number, since it uses as much as digits as its factorization.

1200401101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35243.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1200401101 is about 34646.8050619390. The cubic root of 1200401101 is about 1062.7769541643.

Adding to 1200401101 its reverse (1011040021), we get a palindrome (2211441122).

The spelling of 1200401101 in words is "one billion, two hundred million, four hundred one thousand, one hundred one".